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EC abnormally high but plants grow ok. very strange.

PersasHstarted grow question 5 years ago

I read the EC of the drained water from the sustrate of my plants for the 1st time and it read 4.5 in one and 3.6 in other. I havent put any nutrients on these plants appart from a root stimulator since seedling.5 weeks grow. The substrate brand is Top Crop heavy mix.

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Setup. Substrates

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NobodysBudsanswered grow question 5 years ago

Probably callibration related.

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